These are all communities you can take part in now, to help others by employing their services and saving $ on costs or serving in any way you feel comfortable for $ and helping others save $. It depends on the situation. Check out the links below..
https://www.couchsurfing.org/ – Look for people to help you get around a new place, or become a host for other visitors.
http://kickstarter.ca – Have an idea ?? share an idea, or back a great idea… Business Funding..
http://www.etsy.com/ca – Sell your arts, crafts etc…
http://www.lyft.me/drivers – Need some $ drive people in need for $ or get a lift for a fraction of a cab..
https://www.airbnb.com/ – Rent out or stay at other peoples place for fractions (homes, boats, tents, RV’s, castles etc..)
http://meshing.it/book – Sharing Economy Website Magazine